189077965 has 4 divisors (see below), whose sum is σ = 226893564. Its totient is φ = 151262368.

The previous prime is 189077939. The next prime is 189077971. The reversal of 189077965 is 569770981.

It is a happy number.

189077965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 147938569 + 41139396 = 12163^2 + 6414^2 .

It is a cyclic number.

It is not a de Polignac number, because 189077965 - 2¹¹ = 189075917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18907792 + ... + 18907801.

It is an arithmetic number, because the mean of its divisors is an integer number (56723391).

Almost surely, 2^189077965 is an apocalyptic number.

It is an amenable number.

189077965 is a deficient number, since it is larger than the sum of its proper divisors (37815599).

189077965 is an equidigital number, since it uses as much as digits as its factorization.

189077965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37815598.

The product of its (nonzero) digits is 952560, while the sum is 52.

The square root of 189077965 is about 13750.5623521367. The cubic root of 189077965 is about 573.9582549252.

The spelling of 189077965 in words is "one hundred eighty-nine million, seventy-seven thousand, nine hundred sixty-five".